BK7 Optical Lens

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: -

Supply Capability:: 1000 Pieces per Day week pc/month

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Introduction of BK7 Optical Lens

Our standard lens has the following specifications:

Material: grade A BK7, fused silica, sapphire, or CaF2

Diameter tolerance: +0.0, -0.12mm

Paraxial focal length tolerance: ±2%

Centralization: 3arcmin

Clear aperture: >85%

Surface figure: 1/2 at 632.8nm!

Q: Glass raw materials processing equipment, glass raw materials crushing equipment prices generally sell how much?: The above two processes generally has the following disadvantages: 1, unit 2, a large scale of investment products; metal consumption per unit of product 3, amazing; by-products (<0.1mm) high proportion; 4, wet production requires a large amount of water and cold in winter can not produce.

Q: Civil construction projects, exterior wall glass curtain wall raw materials, or construction process, or the end of the construction, what tests should be done?: Because I work in the glass curtain wall project, only know raw materials to do a glass curtain wall material impact strength test before installing the unit model, in a special laboratory, no experimental requirements should be in the process of construction, the construction of the end of may do some water resistance experiment. Hope to be of help to you!

Q: What is the raw material of glass made of?: The glass is the main component in the manufacturing process of quartz sand, quartz sand is combined with other chemical materials at high temperature (1300 degrees Celsius) crystallized after firing the cooling of the body, with a hard, abrasion resistance, corrosion resistance and high transmittance characteristics, its wide application has a long history. The manufacturing technology of the use of glass a thousand li a day, increasing by the clock, glass, doors and windows, lamps, such as high-tech electronic components and space technology, are indispensable glass.

Q: Method for cutting thick glass: Mechanical cutting glass:Mechanical cutting glass is the mechanical property of glass with low tensile stress. The diamond or emery is used to cut the surface, and the force is cut off because of tension.(1) when glass cutters do not cut very thick glass, they use diamond glass cutters inlaid with diamond at the ends of brass and cut ordinary flat glass, and often use super hard knife wheels. In addition, when cutting, adding kerosene and other liquids, the incision and tool life are better protection. In addition, to lead the soft glass tube, but also useful to cut the file.(2) diamond saw cutting diamond saw is not limited to glass, but also widely used in the cutting of germanium, silicon, ceramics, crystal and so on. Compared with common grit or ordinary abrasive saw, diamond saw has high cutting efficiency. Generally, grinding fluid is used during cutting. The bonding materials of diamond saw include metal, thermosetting resin, ceramic and so on. But the metal saw such as brass is usually cut. The thickness of saw blade is about 0.2 ~ 7ram. Cutting method is divided into outer circle cutting, inner circle cutting and band saw cutting.

Q: What's good with a cup?: TIPS intimate tips: Mug divided into pure porcelain, porcelain, glass, plastic or stainless steel of these types of materials.

Q: The preparation process of glass and the basic material and the function of raw materials: The main raw materials are: silica glass (sandstone), sodium carbonate, feldspar, dolomite, limestone and mirabilite.1, raw materials broken: the above raw materials broken into powder;2, weighing: according to the list of ingredients, called a certain amount of powder;3, will be called: the mixed powder mixing, stirring into a batch (colored glass and colorant);4, melting: the mixture into the glass furnace, melting at 1700 degrees into glass;5, forming: liquid glass forming device with the corresponding sheet glass, bottles, glass, lamp, glass tube, a fluorescent screen......6, annealing: the molding of a variety of glass products into the annealing furnace annealing, balance stress, to prevent self cracking

Q: What does GF30 represent in plastic PP GF30?: Polypropylene reinforced by glass fiber, mechanical properties, creep resistance and dimensional stability can be improved,.PP-GF30T has a good low-temperature resistance and high impact strength, PP-GF30 heat resistance

Q: What is the raw material of glass fiber reinforced plastics and what is the matching ratio?: The main raw material is unsaturated resin and fiber cloth,

Q: Which is the best solar water heater tube?: The vacuum heat collecting tube has the mirror surface complete, bright and clean, without blackening and blackening.

Q: What's the difference between heat resistant glass and tempered / reinforced glass?: Resistance to cold shock resistance, thermal shock test by 120 DEG C, the temperature difference of 200 degrees changes without deformation, has a very low coefficient of thermal expansion, so the anti blast temperature is not easy to deform and explode, has good thermal stability, impact resistance. High chemical stability and mechanical properties.

We own many kinds of optical process equipment and inspection equipment, such as automatic computer double-side polishing machines, automatic rolling round machines, cutting piece machines, spectrum testing machines, bevel angle and edge machines, and constant temperature cabinets. We can produce various kinds of optical glass on the basis of customer's needs and the guarantee of quality.

1. Manufacturer Overview

Location	Jiangsu,China
Year Established	2004
Annual Output Value	US$2.5 Million - US$5 Million
Main Markets	North America South America Eastern Europe Africa Eastern Asia Western Europe
Company Certifications	ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Shanghai
Export Percentage	21% - 30%
No.of Employees in Trade Department	3-5 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	3,000-5,000 square meters
No. of Production Lines	5
Contract Manufacturing
Product Price Range	Average